(3) Similar to [1]}, we also guess that \(z_t^{1,1},z_t^{2,1},\tilde{z}_{(t,e)}^{1,1},\tilde{z}_{(t,e)}^{2,1}\)  have the following form, respectively:
\(\begin{aligned}z_t^{1,1}&=\Delta ^1(t)\mathbb {1}_{[\bar{t},\bar{t}+\epsilon ]}+z_t^{1,1^{\prime }},\\z_t^{2,1}&=\Delta ^2(t)\mathbb {1}_{[\bar{t},\bar{t}+\epsilon ]}+z_t^{2,1^{\prime }},\\\tilde{z}_{(t,e)}^{1,1}&=\tilde{\Delta }^1(t)\mathbb {1}_{\mathcal {O}}+\tilde{z}_{(t,e)}^{1,1^{\prime }},\\\tilde{z}_{(t,e)}^{2,1}&=\tilde{\Delta }^2(t)\mathbb {1}_{\mathcal {O}}+\tilde{z}_{(t,e)}^{2,1^{\prime }},\end{aligned}\) 
